It will be interesting to see how they handle turn based combat and VATS in an MMO. Since VATS and the design is still Bethesda's toy, they only have the rights to the world environment and branding. So I am guessing it won't look anything like Fallout 3.

The original Fallout 1 and 2 were great, but I don't think that 2d look and feel would fly with the younger crowd. It will also be interesting to see how they address group mechanics for raids.

Tank = Melee Mutant
DPS = Easy. Shotguns, Snipers.
Heals = ?

Profit!

I wonder if crafting will also include jet. So you can be a virtual drug dealer! Maybe it'll even have the Cat's Paw questline...

Old titles would generate some cash, but I don't think it would be in sufficient quantity to support a game company. Also it's not as though you can just dump the games out there and collect money, it takes support and updating them for modern systems.